/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import model.dao.DanhMucDAO;
import model.dao.SachDAO;
import model.pojo.DanhMuc;
import model.pojo.Sach;

/**
 *
 * @author NHAnh - nhanh@fit.hcmus.edu.vn
 */
@WebServlet(name = "BookListController", urlPatterns = {"/BookListController"})
public class BookListController extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String action = request.getParameter("Action");
        if (action != null) {
            //Left-Bar-Data
            ArrayList<DanhMuc> danhMucs = DanhMucDAO.layDanhSachDanhMuc();
            request.setAttribute("DanhMucs", danhMucs);
            if (action.equals("View")) {
                //Book-Data
                String maDanhMuc = request.getParameter("MaDanhMuc");
                ArrayList<Sach> saches = SachDAO.layDanhSachTheoDanhMuc(maDanhMuc);
                request.setAttribute("Saches", saches);
                request.getRequestDispatcher("/BookList.jsp").forward(request, response);
            } else if (action.equals("Search")) {
                //Book-Data
                String maDanhMuc = request.getParameter("danhMuc");
                String tenSach = request.getParameter("tenSach");
                ArrayList<Sach> saches = SachDAO.timKiemSach(maDanhMuc, tenSach);
                request.setAttribute("Saches", saches);
                request.getRequestDispatcher("/BookList.jsp").forward(request, response);
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
